Mert Ural

I built every layer alone. Calls arrive over SIP through Asterisk, twenty milliseconds of audio at a time. Speech-to-text runs while you are still talking, Claude writes the answer one sentence at a time, and ElevenLabs starts on the first sentence before the second one exists. If Claude is slow, three other models are waiting.

It ran on a real Turkish phone number until the server lease ended in October 2026. A browser demo is being built; until then, its own site walks through a call down to the millisecond.

I wanted a cleaner I could trust. Every diagnosis is a rule you can read in the source, and every finding carries the evidence it was built from. It only touches an allowlist, every change can be undone, and there is no telemetry, no account and no AI inside.

Days later it reads its own changes back, to check Windows didn’t quietly undo them. 171 tests keep it honest. One line to install:

Two apps on one Supabase backend, one for customers and one for the shop. It began as a clickable prototype: filmed salon scenes behind the search, a headline word that changes with each scene, and a calendar that flags first-time customers so the shop can greet them properly.

Now it is moving into Expo, one screen at a time. The working name is sıradaki, “who’s next”. If you want to click through the prototype, ask me and I’ll send the link.